1 DR. BUTMAN: All right. Page, you are changing all your 



2 "indirects" to "directs." 



3 DR. VALENTINE: Yours, too. You are saying a layer of fine grain 



4 sediment in Lydonia is obviously accumulating in there, even if it's 



5 coming from the canyon walls; it is still accumulating on the floor. 



6 DR. BUTMAN: Okay. Maybe the "direct" and "indirect" isn't an 



7 important distinction. 



8 DR. NEFF: Do we know where the fine-grain sediment is from, the 



9 shelf or around the heads of the canyons? Is it coming from the canyons 



10 or from another source? That relates to these questions, if the canyons 



11 can be a source of fine-grained sediments. 



12 DR. TEAL: I gathered from all that you were saying yesterday is 



13 that is not known. We don't know where those fines up at the head of 



14 the canyons are coming from. 



15 DR. BUTMAN: No. But you are saying the canyons may also--it is 



16 absurd that there are finer-grained sediments around the heads of 



17 canyons relative to the same depths on the existing shelf. Is that 



18 something caused by the canyon environment? 



19 DR. NEFF: Right. Could the canyons be the source? 



20 DR. BUTMAN: Right. 



21 DR. KRAEUTER: Again, I think the term is "accumulate." 



22 Obviously, if we say yes, they have to be filling up. It depends really 



23 on the time scale of what we mean by accumulate. Just the fact that 



24 we've got a layer down there may mean that's a very temporary thing and 



25 it is going to be resuspended and gotten out of there or it is just a 



26 pass-through as a conduit or something. 



27 We've got a time scale we are dealing with here and that creates 



28 some problems for me, trying to figure out what accumulate means. An 



29 accumulation, to me, means it is slowly filling up and I don't know 



30 whether that's true or not. 



31 DR. BUTMAN: Argue with me on the evidence. I think here, this 



32 says they are slowly filling up. On the time scale of the last 10,000 



33 years, in the head of Lydonia Canyon, I would argue that they are 



34 filling up. 



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